Question

A gas that burns with a blue colour flame and gives a pop sound is Hydrogen.
A.True
B.False

Answer 1

Hydrogen is the lightest element in the universe with an atomic weight of 1 and molecular weight of 2. Due to its light-weight and reactive nature, it is a component of most of the compounds in the universe.

Complete answer:
The word “burning” in major terms refers to the reaction of any compound with oxygen. Here also the word burning refers to the reaction of hydrogen with oxygen. Hydrogen or dihydrogen gas is highly flammable as it forms an explosive mixture with the air in concentration from 4%-74%. It burns in air with a pale blue flame and the colour of the flame is used to detect the presence of hydrogen. The reaction of hydrogen with oxygen in the air is very exothermic in nature, liberating about $\text{-286 kJ/Mol}$ of heat energy. Due to this a pop sound is heard whenever hydrogen is burnt in air as the energy formed is liberated in the form of heat and sound.

Hence, the statement that, “A gas that burns with a blue colour flame and gives a pop sound is Hydrogen” is true.

Note:
Hydrogen has different applications as it is used in the petrochemical industry for the upgradation of different fossil fuels. On a large scale, it is used for the hydrogenation of different compounds, mainly fats and fatty acids that are further used in different applications. It is also used as a coolant in different power stations to cool turbo generators.